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This study examines the antecedents and dynamics of authoritarian leadership and extends the effects of managers' sleep quality to employee behavior.

On the basis of self-regulation theory, 513 unit day samples were analyzed using cross-level path analysis and a Monte Carlo simulation test.

Managers' sleep quality is positively related to authoritarian leadership and positive emotions play a mediating role. Authoritarian leadership is positively related to employees' counterproductive behavior. Managers' sleep quality affects employees' counterproductive behavior through managers' positive emotions and authoritarian leadership.

Individuals should learn to reduce stress and maintain a positive mood. Organizations should reduce employees' overtime work and work stress and find other ways to improve employees' sleep quality.

First, we considered authoritarian leadership to be dynamic and studied it on a daily basis. Second, we studied the antecedents of authoritarian leadership from the perspective of leaders' states (sleep quality and emotions). Third, we discussed the effect of managers' sleep quality on employee behavior.

Sleep quality has been associated with health and safety issues influencing construction labour productivity in developing countries. Despite its significantly adverse contribution to these facets if left unattended to, limited studies have sought to establish its prevalence and causal factors in labour-intensive contexts. This study aims to bridge the gap between the prevalence and casual factors of poor sleep quality among construction workers.

Adopting a case study research design, data were collected from a randomly selected sample of construction workers (n = 475) recruited from four construction-based corporations in Southern India. Self-administered questionnaires comprising a Pittsburgh Sleep Quality Index (PSQI) scale was used to measure sleep quality among respondents alongside demographic characteristics, lifestyle preferences and work-habits data. Data were analysed using multivariate logistic regression analysis and descriptive statistical techniques.

Slightly more than a third of the construction workers (n = 33.9%) surveyed experienced poor sleep quality based on a PSQI method score of = 5. Also, the nexus between demographic characteristics, lifestyle preferences and work habits on the incidence of poor sleep quality among construction workers was confirmed.

The study contributes to the contemporary discourse on improving sleep health of construction workers to enhance their well-being thereby enabling their contribution towards achieving improved construction labour productivity.

This study makes an original contribution to the extent that it seeks to not only determine the prevalence of sleep quality within the construction industry and associated causal factors but to explore its implications on construction labour productivity.

Staying at home for a prolonged period, the stress during COVID-19 quarantine may affect sleep quality, night eating behaviours of individuals. This paper aims to identify the relationship between night eating behaviour, sleep quality, perceptions of health locus of control in women during the pandemic.

An anonymous, Web based, cross-sectional study was conducted for the duration of a month (April-May, 2020). The study evaluated the nutritional habits of the participants. Anthropometric measurements were noted. Night Eating Syndrome Questionnaire (NESQ), Pittsburgh Sleep Quality Index (PSQI), Multi-dimensional Health Locus of Control-A were used for data collection.

With a mean age of 33 ± 8 years, 529 women participated in the study. The mean NESQ score was 14.4 ± 4.7, PSQI score was 6.4 ± 2.9. Higher night eating scores were observed in participants with chance locus of control (CLC) perception when compared to participants with internal health locus of control (IHLC) perception (p < 0.05). Lower sleep quality was observed in obese participants compared to normal/overweight participants (p < 0.05). It was also found that night eating behaviours significantly predicted sleep quality (R = 0.36, R² = 0.13; p < 0.01), explaining about 13.3% of total variance of sleep quality.

Only internet users and women participated in the study, and the questionnaire form was applied online; the information was obtained in the form of the participants' own statements.

It was found that night eating behaviour significantly predicted sleep quality during the pandemic. It was also determined that the individuals with high chance locus of control perception had higher NES scores than the individuals with high internal locus of control perception.

The night eating behaviours significantly predict sleep quality, individuals with a high perception of CLC had a higher night eating score than individuals with high perception of IHLC during the pandemic.

Patients with chronic obstructive pulmonary disease (COPD) suffer from many health problems including poor sleep. This paper aims to evaluate the relationship between diet quality indices (DQIs) and sleep quality in COPD.

The current cross-sectional study was carried on 121 COPD patients. Subjective quality of sleep was determined by Pittsburgh Sleep Quality Index (PSQI) and categorized into “poor” and “good” sleep quality. Dietary history was assessed by the DQIs. Disease status was categorized according to the Global Initiative for Chronic Obstructive Lung Disease (GOLD) Guidelines.

In total, 103 men and 18 women with a mean age of 66.1 ±10.9 were studied. The subjects were categorized into four groups based on GOLD; 3.3% of subjects were at Stage 1, 38% in Stage 2, 38% in Stage 3 and 20.7% in Stage 4. In total, 38% of subjects were good, and 62% were bad sleepers according to PSQI score. There was no significant relationship between the severity of COPD and PSQI score. We observed a significant inverse relation between PSQI total score and Mediterranean diet (MED) scale, Healthy Eating Index (HEI)-2010 and HEI-2005 (p = 0.024, 0.037 and 0.024, respectively) in males.

This study showed a high prevalence of poor quality of sleep and sleep disturbances among COPD patients. There was an inverse association between PSQI and sleep disorders and DQIs scores in COPD patients. Regardless of the severity of airflow obstruction, poor diet quality may constitute a risk factor for sleep quality.

This study aimed to assess the sleep quality and its associated factors among patients with type 2 diabetes mellitus (T2DM) in a private hospital in Yangon, Myanmar.

A cross-sectional study was conducted. A total of 289 T2DM patients were interviewed using a structured questionnaire. An English version of the Pittsburgh Sleep Quality Index (PSQI) was translated into Myanmar and used for assessing sleep quality.

Approximately 48.4% of T2DM patients had poor sleep quality (PSQI score > 5). The mean ± SD of the PSQI global score was 5.97 ± 3.45. About 36.0% of participants reported the presence of diabetes complications, and 14.9% used sleep medication. About 27.7% had depression and 8.3% had poor family relationships. Multiple logistic regression analysis revealed that the presence of complications (AOR = 1.86; 95%CI; 1.04–3.35), poor family relationships (AOR = 5.09; 95%CI; 1.55–16.68) and depression (AOR = 7.52; 95%CI; 3.83–14.76) were significantly associated with poor sleep quality.

The prevalence of poor sleep quality is rather high among T2DM patients. Healthcare personnel and hospital administrators should focus on the complication status, family relationships and depression status of T2DM patients by providing regular screening for sleep quality and depression and by providing a program of sleep health education and counselling at diabetic clinics

Sleep deprivation is well known to negatively affect mood, cognition and behaviour. The purpose of this paper is to explore the relationship between sleep quantity, subjective sleep quality and aggression, hostility and well-being levels among adults in a non-clinical population.

In total, 201 participants aged 18 and above from Germany, UK and the Netherlands completed an online survey consisting of a Pittsburgh Sleep Quality Index along with measures of psychological well-being, implicit and explicit aggression, and intent attributions.

Sleep disturbances were related to decreased levels of psychological well-being. Subjective poor sleep quality predicted increased hostile attributions. The overall sleep experience, however, was not associated with aggression levels. Nevertheless, both a poor sleep experience and low sleep quality were related to increased reactive aggression, but only in British participants.

The importance of perceived sleep quality rather than sleep quantity in predicting hostile and aggressive behaviours is indicated. The quality of sleep and perception of this quality should be the focus of clinical intervention to limit unwanted behavioural impacts. The importance of accounting for sleep quality perception in intervention that examines attributional biases such as hostility is indicated. Differences across countries should be identified and accommodated for in intervention.

This is the first study to consider a role for sleep quality (including perception) and sleep quantity in relation to aggression and hostility in a cross-country European sample.

The purpose of this paper is to explore the prevalence and determinants of poor sleep quality among industrial workers in Thailand. Additionally, the authors assess the risk of work-related injuries associated with poor sleep quality.

A descriptive correlational research was implemented. A total of 472 workers from the northern region of Thailand contributed to this study. Sleep quality was assessed by the Thai version of the Pittsburgh Sleep Quality Index (Thai-PSQI). The score of more than five indicated poor sleep quality. Participants completed self-administered demographic, work characteristics and work-related injury questionnaires. Data were analyzed by applying descriptive and logistic regression statistical techniques.

More than one-third of the workers had reported poor sleep quality. Results from multivariable logistic regression analysis yielded male gender (OR = 2.74, 95% CI 1.46–5.17), alcohol drinking (OR=2.1, 95% CI 1.24–3.35), pain (OR=2.05, 95% CI 1.32–3.17) and rotating shift work (OR=1.94, 95% CI 1.23–3.05) increased the risk of poor sleep quality. Furthermore, poor sleep quality was statistically significantly associated with the risk of work-related injuries (OR = 3.98, 95% CI = 2.39–6.66).

Findings of this study indicate that the prevalence of poor sleep quality is high among industrial workers. Work characteristics and health behaviors were associated with poor sleep quality which increases the risk of work-related injuries. Modification of work environment and personal life style choices can improve quality of sleep among workers and consequently lower incidence of work-related injuries.

The purpose of this study is to investigate the effects of chronotype on diet and sleep quality in healthy female students.

This study was conducted in 197 healthy female students and were grouped in morning, intermediate and evening types according to the Horne and Ostberg Morningness-Eveningness Questionnaire (MEQ). Assessment included sleep quality using the Pittsburgh Sleep Quality Index (PSQI); physical activity level using the International Physical Activity Questionnaire-Short Form (IPAQ-SF); dietary intake using the 24-h dietary recall; and diet quality using the Healthy Eating Index-2015 (HEI-2015).

In this study, no significant difference was found between chronotypes in terms of general nutritional habits, age, smoking status, anthropometric measurements and physical activity levels. However, evening-type individuals had poor sleep quality (p = 0.040) and having issues about sleep latency (p = 0.049) and daytime dysfunction (p = 0.044), and they had had lower intake of whole fruit (p = 0.002), total fruit (p = 0.024) and higher consumption of refined grains (p < 0.001). Although, among chronotypes, there is no difference in the intake of protein, saturated fat, monounsaturated fatty acids, polyunsaturated fatty acids and dietary fiber, evening-type individuals’ daily energy (p = 0.013), fat (p = 0.021) and carbohydrate intake (p = 0.033) were higher.

In conclusion, further research is required to understand the relationship between chronotype, diet and sleep quality. This study is one of the limited studies that examines sleep quality, daily energy and macronutrient intake and diet quality together for healthy women.

The purpose of this paper is to explore business travelers’ sleep experience in hotels by measuring sleep quality and determining the extent to which hotel attributes, demographic characteristics, and hotel quality level influence their sleep quality while staying in hotels.

This study utilized a self-reported survey to obtain data from business travelers who have stayed in a hotel at least two nights for a business trip in the past 30 days. A total of 304 business travelers were surveyed in this study.

The results indicated that there was a difference in the factors that influenced business travelers’ overall satisfaction with sleep in mid-scale (2.5-3.5 stars) vs upscale hotels (4+stars). The findings showed that business travelers generally had lower sleep quality at hotels and they were more likely affected by noise both outside and inside the guestroom, as well as material elements inside the room.

This study represents a pioneering attempt at exploring business travelers’ sleep quality and satisfaction with sleep in hotels. Furthermore, this study contributes to the limited research addressing sleep quality as a fundamental function of hotel services. Also, this is the first study to measure business travelers’ sleep quality in hotels by using the sleep quality scale.

Incivility is pervasive in organisational settings, particularly in healthcare, and is associated with negative employee outcomes. The aim of this study was to analyse the relationships between experienced incivility, sleep quality and emotional outcomes, positioning sleep quality as a mediator. Additionally, the protective role of tenure and the unique effects of incivility from different sources were examined.

This study used a daily diary longitudinal design using self-report questionnaires with 92 nurses of varying tenure.

This research demonstrates that experiencing incivility negatively impacts sleep quality, which, in turn, increases surface acting and emotional exhaustion. Furthermore, the negative relationship between incivility and sleep quality is attenuated among nurses who have longer tenure.

These findings are helpful in developing targeted practical practices, such as incivility interventions and mentorship programs to reduce the incidence and impact of incivility.

This study draws upon theories of self-regulation and emotion regulation to examine how incivility diminishes self-control resources, leading to negative outcomes. This study also positions job tenure as a buffer against incivility and examines the differential impact of different sources of incivility.